Machining, positioning and fixing device for adjusting piece of aero-engine

Abstract

The utility model discloses an aero-engine adjusting sheet machining, positioning and fixing device which comprises a fixing bottom plate, a supporting boss is arranged in the middle of the upper surface of the fixing bottom plate, and pressing devices are arranged on the periphery of the supporting boss. The shape of the upper side of the supporting boss is consistent with the shape of the bottom of the aero-engine adjusting piece. The supporting boss consistent with the bottom of the aero-engine adjusting sheet in shape is arranged on the fixing bottom plate, the supporting boss is matched with the bottom of the adjusting sheet when the adjusting sheet is installed, positioning can be rapidly completed, meanwhile, the embedded positioning mode is higher in positioning precision, the adjusting sheet is firmer in the follow-up fastening and machining process, and the positioning precision is improved. Dislocation is not prone to occurring, and the machining precision is higher; in addition, as the bottom of the adjusting piece is in dense contact with the supporting boss, the adjusting piece cannot deform completely in the machining process, the product consistency is better, and therefore the fixing device of the scheme has higher practicability.

Description

Technical Field

[0001] The utility model relates to a parts processing positioning and fixing device, in particular to an aviation engine regulating sheet processing positioning and fixing device. Background Art

[0002] The aircraft engine regulating plate is in the shape of a square plate, with a slightly upward arched space at the bottom, and shaft holes for installation on the upper side and one end. After the aircraft engine regulating plate blank is cast, it needs to be processed by four-axis processing equipment such as drilling, grooving, chamfering the hole mouth, and surface processing.

[0003] Since the four-axis processing equipment is an automated equipment, the adjustment piece needs to be limited and fixed by a matching fixing tool before being placed in the processing equipment.

[0004] The current tooling for positioning and fixing the adjustment piece is a metal plate with the shape of the adjustment piece engraved on it, which is used as the limit line. The adjustment piece is fixed to the limit tooling through a fixing fixture set around the limit line. This kind of fixing tooling has defects in the actual production process, and the main defects include:

[0005] 1. The limit line is used for limiting. Although the limit accuracy is high when placing the adjustment piece, the adjustment piece is prone to imperceptible displacement during subsequent fixing, resulting in reduced processing accuracy and errors in the product size position of the adjustment piece.

[0006] 2. Since there is a certain cavity at the bottom of the adjusting piece and there is no tight fit between the adjusting piece and the fixed tooling, the adjusting piece may become loose due to vibration during processing, resulting in slight displacement, further reducing the processing accuracy. In addition, the bearing capacity of the cavity is limited during the processing, and the adjusting piece may undergo certain deformation, affecting the consistency of the quality of the adjusting piece.

[0007] Therefore, improving the fixed tooling used for machining aircraft engine adjustment plates is a necessary means to solve the current technical problems. Utility Model Content

[0008] In order to solve the above technical problems, the utility model provides an aero-engine adjustment plate processing positioning and fixing device. The utility model has the characteristics of easy installation of the adjustment plate, not easy to be misplaced or deformed during installation and processing, high limit accuracy, small processing error, good product consistency, and strong practicality.

[0009] The technical solution of this utility model:

[0010] A device for machining, positioning and fixing an aero-engine regulating plate comprises a fixing base plate, a supporting boss is arranged in the middle of the upper surface of the fixing base plate, and a pressing device is arranged around the supporting boss;

[0011] The shape of the upper side of the supporting boss is consistent with the shape of the bottom of the aircraft engine adjustment plate.

[0012] This solution sets a supporting boss with the same shape as the bottom of the aircraft engine adjustment piece on the fixed base plate. When the adjustment piece is installed, the supporting boss cooperates with the bottom of the adjustment piece to quickly complete the positioning. At the same time, this mosaic positioning method has higher positioning accuracy, and the adjustment piece is more secure and less likely to be misplaced during subsequent tightening and processing, and the processing accuracy is higher. In addition, since the bottom of the adjustment piece forms a close contact with the supporting boss, the adjustment piece will not be deformed at all during the processing, and the product consistency is better. Therefore, the fixing device of this solution has stronger practicality.

[0013] Preferably, in the aforementioned aircraft engine adjustment plate processing positioning and fixing device, a limiting pit is provided in the middle of the upper surface of the fixed base plate, and the size of the limiting pit is larger than the size of the supporting boss; the supporting boss is arranged in the limiting pit.

[0014] In this solution, a limiting pit is set on the fixed base plate, and a supporting boss is set in the limiting pit. The limiting pit can further assist in rapid positioning, and the limiting efficiency is higher, the limiting firmness is better, and the processing error is smaller.

[0015] Preferably, in the aforementioned aircraft engine adjustment plate processing positioning and fixing device, a tool withdrawal groove is provided on the corner of one end of the limiting pit.

[0016] Preferably, in the aforementioned aircraft engine adjustment plate processing positioning and fixing device, a sinking groove is provided inside the limiting pit along the periphery of the supporting boss.

[0017] This solution sets a sinking groove around the supporting boss, which allows the edge of the adjusting plate to be suspended in the air, thereby ensuring that the bottom cavity of the adjusting plate and the supporting boss can be in close contact, further reducing the possibility of deformation of the adjusting plate and ensuring product consistency.

[0018] Preferably, in the aforementioned aircraft engine adjustment plate processing positioning and fixing device, the clamps are arranged on both sides of the fixed base plate in the width direction and at the end with the highest horizontal plane in the length direction of the supporting boss.

[0019] In this solution, by arranging the clamps on both sides of the fixed bottom plate in the length direction and at one end in the length direction, the limiting and fastening effect is better.

[0020] Preferably, in the aforementioned aircraft engine adjustment plate processing positioning and fixing device, the clamp includes a pressure plate, a through hole is provided in the middle of the pressure plate, a fastening screw is provided in the through hole, and a fastening threaded hole cooperating with the fastening screw is provided on the fixing base plate.

[0021] The compactor of this solution has a simple structure, is easy to use and has strong practicality.

[0022] Preferably, in the aforementioned aircraft engine adjustment plate processing positioning and fixing device, the through hole is a strip-shaped hole.

[0023] This solution can adjust the telescopic distance of the pressing plate within a certain range by setting the through hole as a strip hole, which is more flexible and more practical.

[0024] Preferably, in the aforementioned aircraft engine adjustment plate processing positioning and fixing device, a supporting nail is provided below the rear end of the pressure plate.

[0025] In this solution, a supporting nail is arranged at the rear end of the pressing plate to form a lever structure with the fastening screw, thereby achieving a better fastening effect on the adjusting plate.

[0026] Preferably, in the aforementioned aircraft engine adjustment plate processing positioning and fixing device, the support pin is a screw, and the support pin is threadedly connected to the pressure plate through an adjustment threaded hole provided at the tail of the pressure plate.

[0027] This solution uses threaded screws as support nails, so that the support length is adjustable, the use is more flexible, and the practicality is stronger.

[0028] Beneficial effects of the utility model:

[0029] 1. The utility model sets a supporting boss with the same shape as the bottom of the aircraft engine adjustment piece on the fixed bottom plate. When the adjustment piece is installed, the supporting boss cooperates with the bottom of the adjustment piece to quickly complete the positioning. At the same time, this embedded positioning method has higher positioning accuracy, and the adjustment piece is more secure and less likely to be misplaced during subsequent tightening and processing, and the processing accuracy is higher. In addition, since the bottom of the adjustment piece forms a close contact with the supporting boss, the adjustment piece will not be deformed at all during the processing, and the product consistency is better. Therefore, the fixing device of the utility model has stronger practicality.

[0030] 2. The utility model sets a limiting pit on the fixed bottom plate and sets the supporting boss in the limiting pit. The limiting pit can further assist in rapid positioning, with higher limiting efficiency, better limiting firmness and smaller processing error. Furthermore, by setting a sinking groove around the supporting boss, the sinking groove allows the edge of the adjustment piece to be suspended, thereby ensuring that the bottom cavity of the adjustment piece can be in close contact with the supporting boss, further reducing the possibility of deformation of the adjustment piece and ensuring the consistency of the product.

[0031] 3. The utility model provides a better limiting and fastening effect by arranging a clamp on both sides of the fixed bottom plate in the length direction and at one end in the length direction. The clamp of the utility model has a simple structure, is easy to use, and is highly practical. In addition, by setting the through holes on the pressing plate as strip holes, the telescopic distance of the pressing plate can be adjusted within a certain range, which is more flexible and more practical. By arranging a support nail at the rear end of the pressing plate to form a lever structure with the fastening screw, the fastening effect of the adjusting plate is better. By using a threaded screw as a support nail, the support length is adjustable, which is more flexible to use and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Attached Figure 1 It is a three-dimensional result schematic diagram of the utility model;

[0033] Attached Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0034] Attached Figure 3 For attachment Figure 2 AA view;

[0035] Attached Figure 4 This is a schematic diagram of the planar structure of the utility model when the adjusting piece is installed.

[0036] Explanation of the accompanying drawings: 1-fixed base plate, 2-support boss, 3-pressor, 4-limiting pit, 5-knife withdrawal groove, 6-sinking groove, 7-fastening threaded hole, 8-pressure plate, 9-through hole, 10-fastening screw, 11-support nail, 12-adjusting threaded hole, 13-aircraft engine adjustment plate. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the embodiments, but is not intended to be a basis for limiting the present invention.

[0038] Embodiments of the present utility model

[0039] A positioning and fixing device for machining an aircraft engine adjustment plate, as shown in the attached Figure 1-3 As shown, it comprises a fixed base plate 1, a supporting boss 2 is provided in the middle of the upper surface of the fixed base plate 1, and a clamp 3 is provided around the supporting boss 2;

[0040] The shape of the upper side of the supporting boss 2 is consistent with the shape of the bottom of the aircraft engine adjustment plate.

[0041] The fixing device of this embodiment is made of metal material and is integrally formed, and the supporting boss 2 can be just embedded in the cavity at the bottom of the aircraft engine adjustment plate 13.

[0042] When using, if attached Figure 4As shown, the aircraft engine regulating plate 13 is a simplified schematic diagram, the cavity at the bottom of which is covered on the supporting boss 2, and then after the surrounding clamps 3 are installed, it can be sent to the four-axis processing equipment and processed according to conventional processing technology.

[0043] Further implementation examples include Figure 1-3 As shown, a limiting pit 4 is provided in the middle of the upper surface of the fixed base plate 1 , and the size of the limiting pit 4 is larger than the size of the supporting boss 2 ; the supporting boss 2 is arranged in the limiting pit 4 .

[0044] In a specific implementation, the depth of the limiting pit 4 is equal to the maximum depth of the cavity at the bottom of the adjusting piece, and the shape and size of the edge of the limiting pit 4 are consistent with the shape and size of the edge of the adjusting piece, so that the adjusting piece can just fit into the limiting pit 4.

[0045] Further implementation examples include Figure 1-3 As shown, a tool-retracting groove 5 is provided at a corner of one end of the limiting pit 4. The tool-retracting groove 5 is used for tool-retracting during machining of a four-axis device.

[0046] Further implementation examples include Figure 1-3 As shown, a sinking groove 6 is provided inside the limiting pit 4 along the periphery of the supporting boss 2 .

[0047] The sinking groove 6 of this embodiment is excavated at the bottom of the limiting pit 4 and is deeper than the limiting pit 4 .

[0048] Further implementation examples include Figure 1-3 As shown, the clamps 3 are arranged on both sides of the fixed base plate 1 in the width direction and at the highest end of the horizontal plane of the supporting boss 2 in the length direction.

[0049] In specific implementation, the number of the pressers 3 is set according to the size and needs of the adjustment sheet.

[0050] Further implementation examples include Figure 1-3 As shown, the clamp 3 includes a pressing plate 8 , a through hole 9 is provided in the middle of the pressing plate 8 , a fastening screw 10 is provided in the through hole 9 , and a fastening threaded hole 7 matching with the fastening screw 10 is provided on the fixed base plate 1 .

[0051] During implementation, the aircraft engine adjustment piece 13 is first placed on the fixed base plate 1 , and then the front end of the pressure plate 8 is pressed onto the aircraft engine adjustment piece 13 , and the fastening screws 10 are tightened.

[0052] Further implementation examples include Figure 1-3 As shown, the through hole 9 is a strip hole. The width of the strip hole is slightly larger than the diameter of the fastening screw 10, and the length is multiple times the diameter of the fastening screw 10, so that the pressing plate 8 can slide back and forth within a certain range.

[0053] Further implementation examples include Figure 1-3 As shown, a support nail 11 is provided below the rear end of the pressure plate 8. The support nail 11 and the fastening screw 10 form a lever structure to apply pressure to the aircraft engine adjustment plate 13 at the other end.

[0054] Further implementation examples include Figure 1-3 As shown, the support nail 11 is a screw, and the support nail 11 is threadedly connected to the pressing plate 8 through an adjusting threaded hole 12 provided at the rear of the pressing plate 8.

[0055] In this embodiment, the support nail 11 can be adjusted in height by rotating. When used to fix different positions of the aircraft engine adjustment plate 13, its surface height will also change. At this time, adjusting the height of the support nail 11 can better meet the fixing requirements and improve the fixing effect.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and the utility model of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for machining, positioning and fixing of an aircraft engine adjustment plate, characterized in that: It comprises a fixed base plate (1), a supporting boss (2) is provided in the middle of the upper surface of the fixed base plate (1), and a pressing device (3) is provided around the supporting boss (2); The shape of the upper side of the supporting boss (2) is consistent with the shape of the bottom of the aircraft engine regulating plate.

2. The aircraft engine adjustment plate processing positioning and fixing device according to claim 1 is characterized in that: A limiting pit (4) is provided in the middle of the upper surface of the fixed base plate (1); the size of the limiting pit (4) is larger than the size of the supporting boss (2); and the supporting boss (2) is arranged in the limiting pit (4).

3. The aircraft engine adjustment plate processing positioning and fixing device according to claim 2 is characterized in that: A tool withdrawal groove (5) is provided at a corner of one end of the limiting recess (4).

4. The aircraft engine adjustment plate processing positioning and fixing device according to claim 2 is characterized in that: A sinking groove (6) is provided in the limiting pit (4) around the supporting boss (2).

5. The aircraft engine adjustment plate processing positioning and fixing device according to claim 1, characterized in that: The clamps (3) are arranged on both sides of the fixed base plate (1) in the width direction, and on the highest end of the horizontal plane of the supporting boss (2) in the length direction.

6. The aircraft engine adjustment plate processing positioning and fixing device according to claim 1, characterized in that: The clamp (3) comprises a pressing plate (8), a through hole (9) is provided in the middle of the pressing plate (8), a fastening screw (10) is provided in the through hole (9), and a fastening threaded hole (7) matching with the fastening screw (10) is provided on the fixed base plate (1).

7. The aircraft engine adjustment plate processing positioning and fixing device according to claim 6 is characterized in that: The through hole (9) is a strip-shaped hole.

8. The device for machining, positioning and fixing an aircraft engine adjustment plate according to claim 6, characterized in that: A supporting nail (11) is provided below the rear end of the pressing plate (8).

9. The aircraft engine adjustment plate processing positioning and fixing device according to claim 8, characterized in that: The supporting nail (11) is a screw, and the supporting nail (11) is threadedly connected to the pressing plate (8) through an adjusting threaded hole (12) provided at the rear of the pressing plate (8).

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